The question is unclear, so I have two answers:1) Can you pull a random adult from a population and train them over years so that they would *always* get to 5.14? No, absolutely not.2) Can you pull a random, athletic adult from a population and train them over years so that they would *always* get to 5.14? Again, the odds are against it.3) Can you pull a random, athletic teen from a population and train them over years so that they would *always* get to 5.14? This is trickier, but I think many would make it if they were truly able to dedicate the time and effort.4) Can you pull a random baby a population and train them from a young age to get to 5.14? Probably. I guess the best way to find out is to make climbing an olympic sport and see how China does.

The question not asked, but implied: Are 5.14 climbers at that level because of natural ability or hard work? The answer: probably both, just like the top 0.1% of any sport or other endeavor.